Air Quality

Town of Erie Air Quality Monitoring Program

On Sept. 28, 2021, the Town of Erie announced the launch of a public data portal to view data collected by the air quality monitoring stations operated by Ajax Analytics and Colorado State University (CSU). The stations were deployed in phases between July 6 and Aug. 17 near oil and gas well pads and in adjacent neighborhoods as part of the Town’s Air Quality Monitoring Program. A map of the monitoring station locations is available on the Town’s website.

The Ajax/CSU monitoring network, which consists of 10 real-time monitoring station locations, measures Total Volatile Organic Compounds (TVOC), Particulate Matter (PM), nitrogen oxides (NOx), and meteorological data. The real-time and previously collected data are available at

Each sensor system is equipped with a triggering box. When the trigger is activated, it opens a valve to collect a sample of air. This trigger happens when the TVOC indicator reaches a certain threshold. Additionally, four sites collect continuous 7-day duration, whole-air canister samples.

Additional canisters are also available for one-off sample collection by staff or residents. These canisters are available for pick-up at Town Hall and can be reserved by emailing Canister samples are analyzed by the lab at the Colorado State University Department of Atmospheric Science using gas chromatography. The canister analysis measures 47 different VOC compounds plus methane and ethane. Canister sample reports are available for viewing at

Clean Air Champions

The Town of Erie is a winner for the Clean Air Champions Award for 2021 from the Regional Air Quality Council (RAQC). The Town has partnered with RAQC since 2019 to create a network of 25 publicly available electric vehicle charging stations by 2025; dubbed “25 by 25”. The growing charging station network, along with incrementally electrifying our light-duty fleet vehicles, and creative benefits options for staff will work towards improving local air quality and reducing GHG emissions in the community. The award came with a monetary prize which the Town of Erie then donated directly to the Erie Community Food Bank. 

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